Clearing the Air: The War on Smog
as Director
2025
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Drop Dead City
as Director
2024
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Nazi Town, USA
as Director, Writer, Producer
2024
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Holky: The Steven Holcomb Story
as Executive Producer
2022
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Inside North Korea: The Kim Dynasty
as Writer
2018
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Inside North Korea: Then and Now with Lisa Ling
as Director, Producer, Writer
2017
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The Rise of Drones
as Writer, Director, Producer
2013
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NOVA: Secrets of the Viking Sword
as Producer, Director
2012
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The Two Million Year Old Boy
as Writer, Director
2011
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Inside Area 51's Secrets
as Producer, Director
2010
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Area 51 Declassified
as Writer, Director, Producer
2010
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National Geographic: Inside Sumo's Ultimate Clash
as Producer, Director, Writer
2008
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Inside North Korea
as Script Editor, Director
2006
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American Experience
as Writer, Director, Producer
1988
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NOVA
as Writer, Director
1974
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